EP1050715A3 - Flame detector units and flame management systems - Google Patents

Flame detector units and flame management systems Download PDF

Info

Publication number
EP1050715A3
EP1050715A3 EP00303702A EP00303702A EP1050715A3 EP 1050715 A3 EP1050715 A3 EP 1050715A3 EP 00303702 A EP00303702 A EP 00303702A EP 00303702 A EP00303702 A EP 00303702A EP 1050715 A3 EP1050715 A3 EP 1050715A3
Authority
EP
European Patent Office
Prior art keywords
flame
processor
units
undivided
violet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP00303702A
Other languages
German (de)
French (fr)
Other versions
EP1050715A2 (en
Inventor
David Tindall
David Innes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Spectus Flame Management Ltd
Original Assignee
Spectus Flame Management Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Spectus Flame Management Ltd filed Critical Spectus Flame Management Ltd
Publication of EP1050715A2 publication Critical patent/EP1050715A2/en
Publication of EP1050715A3 publication Critical patent/EP1050715A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/08—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements
    • F23N5/082—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2229/00—Flame sensors
    • F23N2229/08—Flame sensors detecting flame flicker
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2229/00—Flame sensors
    • F23N2229/14—Flame sensors using two or more different types of flame sensor

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Control Of Combustion (AREA)

Abstract

A flame management system comprises two flame detector units (1,2) which are arranged to view different regions of at least one flame (10) and are connected to separate channels of a processor (6). Each detector unit (1,2) has at least two operating modes, such as an infra-red and an ultra-violet operating mode, or a normal and a sensitive infra-red or ultra-violet mode, etc. and is switchable between those modes by the processor (6). The processor (6) thus selectively processes the output of the two units (1,2) and actively controls the operating mode of each to obtain responses appropriate to the type and/or condition of the or each flame (10) being monitored. In order to enable both IR and UV monitoring from a single detector unit (1,2), the detector includes at least one photo-sensitive member (70) together with an optical element such as an IR filter (73) which operates selectively to deliver an undivided IR or an undivided UV compact to the at least one photo-sensitive member.
EP00303702A 1999-05-07 2000-05-03 Flame detector units and flame management systems Withdrawn EP1050715A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9910708 1999-05-07
GBGB9910708.8A GB9910708D0 (en) 1999-05-07 1999-05-07 Flame detector units and flame management systems

Publications (2)

Publication Number Publication Date
EP1050715A2 EP1050715A2 (en) 2000-11-08
EP1050715A3 true EP1050715A3 (en) 2002-09-25

Family

ID=10853085

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00303702A Withdrawn EP1050715A3 (en) 1999-05-07 2000-05-03 Flame detector units and flame management systems

Country Status (3)

Country Link
US (1) US6329921B1 (en)
EP (1) EP1050715A3 (en)
GB (1) GB9910708D0 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7008218B2 (en) * 2002-08-19 2006-03-07 Abb Inc. Combustion emission estimation with flame sensing system
WO2005111556A2 (en) * 2004-05-07 2005-11-24 Walter Kidde Portable Equipment, Inc. Flame detector with uv sensor
SE0501840L (en) * 2005-08-19 2007-02-20 Aga Ab Procedure as well as for monitoring a burner
US7541938B1 (en) 2006-03-29 2009-06-02 Darell Eugene Engelhaupt Optical flame detection system and method
US8245670B2 (en) * 2008-03-13 2012-08-21 Schmitt David W High temperature adjustable sensor housing system apparatus
US20120150484A1 (en) * 2010-06-29 2012-06-14 Optics 1, Inc. Threat detection systems and methods using position-sensing photodiodes

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4160164A (en) * 1977-02-15 1979-07-03 Security Patrols Co., Ltd. Flame sensing system
US4533834A (en) * 1982-12-02 1985-08-06 The United States Of America As Represented By The Secretary Of The Army Optical fire detection system responsive to spectral content and flicker frequency
GB2188416A (en) * 1986-03-25 1987-09-30 Airoil Flaregas Ltd Flame condition monitoring
US4882573A (en) * 1988-03-25 1989-11-21 Pullman Canada Ltd. Apparatus and method for detecting the presence of a burner flame
US4983853A (en) * 1989-05-05 1991-01-08 Saskatchewan Power Corporation Method and apparatus for detecting flame
US5339070A (en) * 1992-07-21 1994-08-16 Srs Technologies Combined UV/IR flame detection system
GB2283094A (en) * 1993-10-22 1995-04-26 Spectus Ltd Flame monitor combining UV sensor with IR flicker detector

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2840146A (en) 1953-10-26 1958-06-24 Gen Controls Co Flame detecting means
GB977001A (en) 1963-03-11 1964-12-02 Honeywell Controls Ltd Improvements in or relating to flame detection apparatus
US3665440A (en) 1969-08-19 1972-05-23 Teeg Research Inc Fire detector utilizing ultraviolet and infrared sensors
US4039844A (en) 1975-03-20 1977-08-02 Electronics Corporation Of America Flame monitoring system
US4370557A (en) 1980-08-27 1983-01-25 Honeywell Inc. Dual detector flame sensor
US4455487A (en) * 1981-10-30 1984-06-19 Armtec Industries, Inc. Fire detection system with IR and UV ratio detector
US4591725A (en) * 1983-10-26 1986-05-27 Bryant Jack A System for amplifying all frequencies detected from a flame detector
US4709155A (en) 1984-11-22 1987-11-24 Babcock-Hitachi Kabushiki Kaisha Flame detector for use with a burner
US4904986A (en) * 1989-01-04 1990-02-27 Honeywell Inc. IR flame amplifier
US5126721A (en) 1990-10-23 1992-06-30 The United States Of America As Represented By The United States Department Of Energy Flame quality monitor system for fixed firing rate oil burners
US5245196A (en) * 1991-08-29 1993-09-14 Hydrotech Chemical Corporation Infrared flame sensor responsive to infrared radiation
US5748090A (en) * 1993-10-19 1998-05-05 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Optical flameout detector
GB9321810D0 (en) * 1993-10-22 1993-12-15 Spectus Ltd Improvements to oil flame monitors
US5625342A (en) * 1995-11-06 1997-04-29 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Plural-wavelength flame detector that discriminates between direct and reflected radiation
US6061141A (en) * 1998-01-20 2000-05-09 Spectronix Ltd. Method and system for detecting gases or vapors in a monitored area

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4160164A (en) * 1977-02-15 1979-07-03 Security Patrols Co., Ltd. Flame sensing system
US4533834A (en) * 1982-12-02 1985-08-06 The United States Of America As Represented By The Secretary Of The Army Optical fire detection system responsive to spectral content and flicker frequency
GB2188416A (en) * 1986-03-25 1987-09-30 Airoil Flaregas Ltd Flame condition monitoring
US4882573A (en) * 1988-03-25 1989-11-21 Pullman Canada Ltd. Apparatus and method for detecting the presence of a burner flame
US4983853A (en) * 1989-05-05 1991-01-08 Saskatchewan Power Corporation Method and apparatus for detecting flame
US5339070A (en) * 1992-07-21 1994-08-16 Srs Technologies Combined UV/IR flame detection system
GB2283094A (en) * 1993-10-22 1995-04-26 Spectus Ltd Flame monitor combining UV sensor with IR flicker detector

Also Published As

Publication number Publication date
GB9910708D0 (en) 1999-07-07
EP1050715A2 (en) 2000-11-08
US6329921B1 (en) 2001-12-11

Similar Documents

Publication Publication Date Title
EP0954032A3 (en) Image sensing apparatus and system including same
WO2000050927A3 (en) Optical device
MXPA97007776A (en) Multifunction occupation sensor
WO1998010472A3 (en) Image sensor
CA2209489A1 (en) Filter element
WO2005015264A3 (en) Multi-way radiation monitoring
AU7686398A (en) Signal-to-noise monitoring in wdm optical communication systems
PL373350A1 (en) Scattered-light smoke detector
EP0748068A3 (en) A light signal reception apparatus having an improved light surge eliminating function
AU3785697A (en) Grating element, light wavelength selection utilizing the same, and optical signal transmitting system
FR2694463B1 (en) CMOS differential amplifier with common mode feedback.
EP0936680A3 (en) Photoelectric conversion device and image sensor
WO2001036940A3 (en) Turbidimeter array system
EP1050715A3 (en) Flame detector units and flame management systems
ATE336013T1 (en) DISTANCE MEASUREMENT LASER LIGHT GRID
EP0854410A3 (en) Power supply system
TW349176B (en) Optical system with grating element and image-grabbing device using the optical system
EP0679880A3 (en) Structure monitoring system using optical fibres.
EP1067717A3 (en) Broadband optical amplifier and system having the optical amplifier
DE69528332T2 (en) Receiver entrance control system for an electronic goods surveillance system using an expert system for dynamic optimization
EP0717522A3 (en) Communication network with plural optical channels, node and concentrator for use therein
EP0715429A3 (en) Wavelength control in a WDM system
EP0926848A3 (en) Optical amplifier for bidirectional WDM optical communications systems
EP0949776A3 (en) Optical transmitter, multiple wavelength optical transmitter and optical transmission method
WO1997015376A3 (en) Filtering

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

AKX Designation fees paid
REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20030326